000 00267nam a2200109Ia 4500
008 230210s9999 xx 000 0 und d
100 _aCHOWDARY S.B.J.R.
_918661
245 0 _aMASTERY OF TEACHING SKILLS
260 _bD.P.H Delhi
_c2006
300 _a340
942 _cBK
999 _c117983
_d117983